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The Ray-Ran Manual Basic Falling Dart Impact Tester is a simple model impact tester that will test to ASTM D1709 method A, and with the addition of the extension pack will also test to Method B.
Brought to you by Ray-Ran, our plastics and polymers testing specialist brand, our Manual Basic Falling Dart Impact Tester is a simple and straightforward impact testing instrument for conforming to ASTM D1709.
The Ray-Ran Manual Basic Falling Dart Impact Tester provides a basic method for determining the energy that causes thin flexible materials such as plastic film, paper, and composite sheets to fail under specified conditions of impact from a free-falling dart. The energy required to cause Initial Failure to the test specimen is expressed in terms of the dart’s weight which would result in the failure of 50% of the specimens being tested. The instrument complies with the ASTM D1709 Method A & B and ISO 7765 part 1.
The methods of holding the test specimen and releasing the dart are designed so that they may be accurately repeated for each test performed. Test specimens are simply clamped in the unique two-piece clamp system which gives a constant tension across the surface area of the specimen ensuring test repeatability. A dart of a known weight is then allowed to free fall and hit the sample. The addition or removal of known weights determines the Initial failure of the sample.
To comply with the relevant test standards, a dart drop height of 660mm with a 1 ½” spherical radius dart (method A,) and a 1524mm height with 2” spherical radius dart (method B) are used. The dart release mechanism is pneumatically actuated and requires the use of both hands to release the dart to ensure maximum operator safety.
A clamp guard is also supplied to ensure the operator’s safety from falling and rebounding darts which can be removed for easy dart retrieval.
The instrument is floor standing with a telescopic arm for adjusting the dart drop height between the 660 mm, method A drop height and the 1524 mm, method B drop height.
Supplied as standard is the 1½” spherical radius tup for Method A testing, with the 2″ spherical radius Method B darts and weights being sold separately.
The apparatus comes supplied with digital counters to record “Fails” and “Non-fails”, and also keep track of the total number of tests conducted.
“Fails” and “Non-fails” are manually plotted on graph paper to give the test result.
This is one of the many impact testing solutions we can offer for material testing needs. We also have a number of handy articles in our knowledgebase that you may find useful. For example, check out our article on Falling Dart Impact Testing to ASTM D1709, or a detailed look at our Instrumented Falling Weight Impact Tester for fast results.
SKU: RR-FDT-MB
Applications: Impact Testing, Sample Testing
Weight: 70 kg
Dimensions: 53 x 72 x 260 cm (WxDxH)
Power: 110-240 VAC, 50-60 hz
Display: digital counters
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